LB11970FV Datasheet, PDF (1/7 Pages) Sanyo Semicon Device – Monolithic Digital IC For Fan Motor Single-phase Full-wave Driver

Ordering number : ENA0707
Monolithic Digital IC
LB11970FV ^{For Fan Motor}
Single-phase Full-wave Driver
Overview
The LB11970FV is a single-phase full-wave driver for fan motor.
Functions
• Single-phase full-wave drive (16V to 1.2A output transistor incorporated)
• Variable speed function using thermistor input and external signal incorporated
→Enables silent and low-vibration variable speed control through direct PWM control with separately-excited upper Tr
• Current limiter circuit (limit at IO=480mA with RL=1Ω connection, the limiter value determined with Rf)
• Kick-back absorption circuit incorporated
• Low-consumption, low-loss, and low-noise drive enabled by the soft switching circuit during phase shift
• Regeneration Di incorporated with less external parts
• HB incorporated
• Lock protection and automatic reset functions incorporated
• FG (rotation detection) output
• Thermal shutdown circuit incorporated
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
VCC maximum supply voltage
VM maximum supply voltage
OUT pin maximum output current
OUT pin output withstand voltage
Symbol
VCC max
VM max
IOUT max
VOUT max
Conditions
Ratings
Unit
17
V
17
V
1.2
A
18
V
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the performance, characteristics, and functions of the described products in the independent state, and are not
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30707 MS IM B8-8588, B8-8433 No.A0707-1/7